PhysChemTutor's answer to Pauline's Junior College 2 H3 Maths Singapore question.
May i know how did u get 1.43?
That 1.4395 is obtained from a online software calculator or equivalent.
For your case you'll need to read off the z-table for the closest Z value that gives you the probability closest to 0.425
For your case you'll need to read off the z-table for the closest Z value that gives you the probability closest to 0.425
360 Tutoring Program